Q. Block B of mass 100 kg rests on a rough surface of friction coefficient `mu = 1/3.` A rope is tied to block B as shown in figure.The maximum acceleration with which boy A of 25 kg can climb on...

Q. Block B of mass 100 kg rests on a rough surface of friction coefficient `mu = 1/3.` A rope is tied to block B as shown in figure.The maximum acceleration with which boy A of 25 kg can climb on rope without making body move is: